Micro VMs with QEMU: Millisecond Boots, Smaller Attack Surface
A recent episode of the (German) “Engineering Kiosk” Podcast with Sébastien Pahl about micro VMs reminded me that I played around with that technology a while ago and always wanted to blog about it - but never got round to it. So here we go! Being one of the maintainers of the Ganeti project I am naturally interested in all things virtualisation & hypervisors. A few years ago Firecracker caught my attention and while digging deeper I found out that QEMU has something similar, inspired by Firecracker. Spoiler: it never made it into Ganeti for various reasons, but a fun technology to play with nonetheless!